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Philips TDA8928J User Manual

Page 14

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2004 May 05

14

Philips Semiconductors

Preliminary specification

Power stage 2 x 10 or 1 x 20 W class-D
audio amplifier

TDA8928J

15.4.1

P

RINTED

-

CIRCUIT BOARD

The printed-circuit board dimensions are 8.636

×

5.842 cm; single-sided copper of 35

µ

m; silk screen on both sides;

79 holes; 94 components (32 resistors and 41 capacitors).

handbook, full pagewidth

MDB615

Bottom silk

C37

R15

C45
C36
R33
R34

R3
C19
C50

C17

C40

C41

R8

R16

IN2

IN1

Q1

C38

R25

Q2

C2

C12

C13

VDD

R28

R14

R13

R29

C11

C10

R26

R24

pin 1

R30

C28

R11

R12

R2

R31

C25

C24

C8

C9

C26

C31

C26

C31

C26

C30

R9

R35

R32

R1

GND

22 V

OUT1

R23

C35

R22

C34

OUT2

C1

C16

R4

C22
C21

R6

R10

R17

R7

R5

U2

+

+

− −

C37

R15

R19

R21

R19

R21

Fig.6 Printed-circuit board (bottom silk) layout for TDA8928J.

handbook, full pagewidth

MDB617

Bottom copper

Fig.7 Printed-circuit board (bottom copper) layout for TDA8928J.